package thread;

public class SyncDemo4 {
    public static void main(String[] args) {
        Boo boo=new Boo();
        Thread t1=new Thread(){
           public void run(){
              boo.methodA();
           }

        };
        Thread t2=new Thread(){
            public void run(){
                boo.methodB();
            }

        };
        t1.start();
        t2.start();
    }
}
class Boo{
    public synchronized void methodA(){
        try {
            Thread t=Thread.currentThread();
            System.out.println(t.getName()+"正在执行A方法。。。");
            Thread.sleep(5000);
            System.out.println(t.getName()+"方法A执行完毕！");
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
   // public synchronized void methodB(){
    public void methodB(){
        synchronized (this){
            try {
                Thread t=Thread.currentThread();
                System.out.println(t.getName()+"正在执行B方法。。。");
                Thread.sleep(5000);
                System.out.println(t.getName()+"方法B执行完毕！");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

    }
}
